This Year X, Y, and Z Formed a New Corporation

This year X, Y, and Z formed a new corporation.X and Y contributed appreciated property for 50 percent of the stock.Z contributed property and services for the remaining 50 percent of the stock.Of the amounts given below, what is the minimum amount of stock that Z must receive for his property contribution if the exchanges of × and Y are to be nontaxable.

A) 8 percent
B) 10 percent
C) 20 percent
D) 30 percent
E) 50 percent